Draft-rigging for railway-cars.



J. F. OCONNR.

DRAFT RIGGING FOR RAILWAYCARS. APPLICATIQN FILED um. so. 191i.

J 9999511999 Apr. 29,1919.

ATTO `.EY

WITNES'SES':

TETTE@ STATES PATENT @FFTCEO JOHN E'. OCONNOR, 0F CHICAGO, ILLNOIS, ASSTGNOR T0 WLLIAM H. MINER, 0F CHAZY, NEW YORK.

asesora.

Specification of Letters Patent.

Patented Apr. 29,

Application filed March 30, 191;?. Serial No. 158,496.

To all ywhom t may concern Be it known that LJOHN F. UCONNOR, a citizen of the United States, residing at Chicago, in the county of Cook and State of fllinois, have invented a certain new and useful mprovement in Draft-Rigging for RailwaysCars, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming pai't of this specification.

My invention relates to improvements in draft rigging for railway cars.

The object of my invention is to provide an efficient and simple friction spring draft rigging. y

fn the drawings forming a part of this specification, Figure 1 is a horizontal section of a draft rigging embodying my invention. Fig. 2 is a cross section taken on line 2 2 of Fig. 1. Fig. 3 is a perspective view of one of .the friction plates. Fig. 4 is a side elevation of the front follower.

Referring to the drawings, the numerals -10 indicate draft members, as, for instance, draft sills, being the parts of the car frame to which the draft rigging is ap plied, 11-11 the front stop members, and 12-12 the rear stop members, all suitably secured to the draft members, as, for instance, by the rivets 13-13. A draw-bar is indicatedat 15, and a yoke at 16, appropriately secured to the draw-bar, as, for instance, by the rivets 17. Within the yoke is the draft gear 18.

rllhe draft gear comprises a shell 19 open at its forward end 20 and closed at its rear end by the preferably integralplate or rear follower 21. rllhe forward end 20 is provided with a rearwardly converging throat 121 forming the friction faces 2,2-22' upon the shell. Each of these friction faces is engaged ,by a friction shoe 23, the said shoes each having a friction face 24C engaging the adjacent friction face of the shell, anda plurality, as, for instance, two longitudinally arranged ribs 25-25 upon their inner faces, the same heilig spaced apart to receive the ends of the friction plates 26 which are transversely arranged between the fric-i tion shoes. The friction"` plates comprise a series of 4alternate-1y arranged Ainterlaced lll-,Shaped members 27-27, each at its`closed end 28 passing about a pin 29 passed through suitable perforations 30-30 in the flanges 25 upon the friction shoes. An intermediate follower 31 provided with a forwardly extended boss 32 engages the rear end of the transversely arranged friction plates, and at the forward end the said frictionplates are engaged by the front follower 33 which is provided with a convexity or boss 34 upon its inner face. Rearwardly of the intermediate follower are mounted the springs 35 which are seated within the shell between its rear end and the intermediate follower. rThe front follower 33 is provided with upper and lower rearwardly extended arms 36H36 suitably spaced apa-rt to pass, respectively, above and below transversely arranged spring plates. rThe draft gear is suitably supported by the carrier plate 37 which is secured to the draft members, as, for instance, by the bolts 38-38.

fn rearward movementv of the draw-bar, the shell is held against rearward longitudi nal movement by the rear stopY members. rThe transversely arranged friction plates are pressed into engagement with each other between the front follower 33 and the intermediate follower 32. rllhe intermediate follower is resisted in its rearward move ment by the springs 35. As the front follower travels rearwardly, the transverse friction plates yield slightly until the follower engages the front ends 39 of the friction shoes, and as the same move rearwardly in the throat of the shell they are in frictional contact with the friction'faee of the shell and at the same time the arms of the friction plates slide upon each other as the friction shoes travel rearwardly and toward each other. Meanwhile the friction elements as a whole are resisted by the springs 3 5'. Upon the release of the draw-bars pressure the said springs 35 force the friction parts to their normal position.

@n forward movement of the draw-bar, the shell is drawn forwardly by the yoke. the gear being stopped at its forward end through the engagement of the front follower 33 against the front stop, and the action of the internal parts ofthe shell upon its forward movement will be similar to their action in'rearward movement, as just dcscribed, as will be readily understood.

I claim:

1. lln a .shock absorbing mechanism for railway cars, the combination with draft members, stops associated therewith, a draw bar, a shell, means for operatively connect lill@ ing the shell to the draw bar, and a follower, of spring means within the shell, said shell havin an inwardly tapered throat at one end, friction shoes within said throat and disposed opposite each other and extending lengthwise of the throat, friction plates extending transversely between said shoes andV held in engagement with each other by said spring means, said frictionV plates being adapted to slide upon each other on movement of the friction shoes, the ends of some of said friction plates on one side being attached to one shoe andf the end-s of other friction plates on the other side being attached to the 'other shoe.

2. In a shock absorbing mechanism, in combination: a shell, springs and friction elements within `the shell, the shell being provided with inclined friction faces, shoes to engage said faces, and friction plates transversely arranged between said shoes, the said friction plates comprising interlaced U-shaped members secured to the shoes.

3. In a shock absorbing mechanism, in combination: atsliell; friction elements and springs within the shell, the shell having inclined friction faces, the friction elements comprising shoes engaging said friction faces aiidhaving interlaced U-sliaped friction plates, the said plates being secured at their closed ends to said friction shoes, the

. spring being adapted to resist the movement of the friction elements.

4. In a shock absorbing mechanism, in combination: a friction shell, friction elements and spring means within the shell; end and intermediate followers; said shell being provided with inclined friction faces, said friction elements including friction shoes engaging and extending lengthwise of said inclined friction faces, and transversely arranged friction plates 'between said shoes, each shoe having a plurality of' friction plat-es attached thereto, said spring means engaging said intermediate follower and being adapted to compress the friction plates between said intermediate follower and the end follower.

5. ln a shock absorbing mechanism, in combination: a shell; friction elements and springs within the shell; front and intermediate followers; the shcltbeiii provided with an inclined friction face, tie friction elements including shoes engaging said faces and transversely arranged friction plates associated with said shoes and mounted be tween said followers, the springs engaging one of said followers and being adapted to compress the friction plates between said iaoaora followerlandthe other follower, said friction plates being U-shaped, alternately arranged, interlaced members.

6.In a shock absorbing mechanism, in combination: a shell; friction elements and springs within ,the shell; front and intermediate followers; the shell being provided with` an inclined friction face,v the friction elements including shoes engaging said faces and transversely arranged friction plates associated with said shoes and mounted between said followers, the springs engaging one of said followers and being adapted to compress the friction plates between said follower and the other follower, said friction plates beingU-shaped, alternately arranged, interlaced members, the said platesl being secured at their closed ends to the friction shoes.

'i'. ln a shock absorbing mechanism, in combination: a friction shell, friction elements and spring means within the shell; said shell being provided with inclined friction faces, said friction elements including friction shoes engaging said friction faces andV interlaced friction plates, said spring means pressing against said plates and the friction plates sliding upon each other upon movement of said shoes lengthwise of the iiiclined friction faces, each shoe having a plurality of friction plates secured thereto.

8. In a shock absorbing mechanism, a shell, friction elements and springs within the shell, the shell having inclined friction faces, the friction elements including shoes engaging said faces and friction plates, said friction plates comprising alternately arranged interlaced U-shaped' members, said members being pinned to the shoes at their closed ends, the s ring being adapted to hold said friction plates in engagement with each other.

9. lln a Shock absorbing mechanism, a shell, friction elements and springs within the shell, the shell having inclined friction faces, the friet-ion elements including slices engaging said faces and friction plates, Said friction plates comprising alternately arranged interlaced U-shaped members, said membersv being pinned to the shoes at their closed ends, the spring being adapted to hold said friction plates in engagement with each other, the said plates sliding each upon another on approachin or separating movement of the fric-tion s ioes.

ln witness that l claim'the foregoing l have hereunto subscribed my name this 20th day of Mar., 1917.

JOHN F. OCONNOR.

llt 

